v3.24.2.u1
provisions (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
CAD ($)
Jun. 30, 2024
CAD ($)
provisions reconciliation    
Balance as at beginning of period $ 1,029 $ 1,061
Additions 141 370
Reversals (52) (92)
Uses (151) (386)
Interest effects 7 15
Effects of foreign exchange, net 3 9
Balance as at end of period 977 977
Current 243 243
Non-current 734 734
Total 977 977
Asset retirement obligations    
provisions reconciliation    
Balance as at beginning of period 379 378
Uses (3) (6)
Interest effects 4 8
Balance as at end of period 380 380
Current 19 19
Non-current 361 361
Total 380 380
Employee-related    
provisions reconciliation    
Balance as at beginning of period 157 219
Additions 81 194
Reversals (1)  
Uses (121) (295)
Balance as at end of period 118 118
Current 114 114
Non-current 4 4
Total 118 118
Written put options and contingent consideration    
provisions reconciliation    
Balance as at beginning of period 247 276
Reversals (43) (82)
Interest effects 3 7
Effects of foreign exchange, net 3 9
Balance as at end of period 210 210
Non-current 210 210
Total 210 210
Other    
provisions reconciliation    
Balance as at beginning of period 246 188
Additions 60 176
Reversals (10) (10)
Uses (27) (85)
Balance as at end of period 269 269
Current 110 110
Non-current 159 159
Total $ 269 $ 269